From LSWiki

Arch

Knowledge Requirement

have at least 100 points among 10% of weapon lore skill, 50% of archery skill and musical composition skill

Actualization Requirement

have at least 200 points among 50% of leximancy skill, 50% of telesma skill, 50% of weapon lore skill and musical composition skill

Facility Formula

15% of charisma plus 15% of intelligence plus 22.5% of leximancy skill plus 25% of musical composition skill plus 10% of telesma skill plus 22.5% of weapon lore skill

Energy Costs

one hundred points of spiritual energy and twenty-five points of order energy

Process to Actualize Form

subvocalize a diatonic scale in arch form

The use of this form is more ancient than recorded Aligned history: it manifests a longbow that can be used for hunting or combat, and then dispelled at will again, bypassing the need to carry the otherwise large and cumbersome weapon around. However, its usual appearance, etched with a small lightning bolt, dates more recently to the use of the form by the elvish adventuring company Cloudburst, who, though primarily composed of Rangers, would regularly enlist or employ Aligned to conjure these weapons for them.

Like all Aligned weapon manifestations, it will last either until banished, until one no longer has the order energy to maintain it, or until one disincarnates. To banish a bow, concentrate on returning the form within it to a potential state.